This is the reference:
Contemporary philosopher William Vallicella writes, "Metaphilosophy is the philosophy of philosophy. It is itself a branch of philosophy, unlike the philosophy of science, which is not a branch of science, or the philosophy of religion, which is not a branch of religion."
It is statements like this that have made Vallicella such a hot ticket on the party circuit.
Well, not only did I get this book in my Christmas stocking, but it's been assigned for one of the courses I'm teaching!
If only I could become that famous.